This manual contains maintenance and repair procedures for the
2009 NISSAN QUEST.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifications and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
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PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!
Your comments are important to NISSAN and will help us to improve our Service Manuals.
Use this form to report any issues or comments you may have regarding our Service Manuals.
Please print this form and type or write your comments below. Mail or fax to:
Nissan North America, Inc.
Technical Service Information
39001 Sunrise Drive, P.O. Box 9200
Farmington Hills, MI USA 48331
FAX: (248) 488-3910
SERVICE MANUAL:Model:Year:
PUBLICATION NO. (Refer to Quick Reference Index):
Please describe any Service Manual issues or problems in detail:
Page number(s)
Note: Please include a copy of each page, marked with your comments.
Are the trouble diagnosis procedures logical and easy to use? (circle your answer)YESNO
If no, what page number(s)?
Please describe the issue or problem in detail:
Is the organization of the manual clear and easy to follow? (circle your answer)YESNO
Please comment:
What information should be included in NISSAN Service Manuals to better support you in servicing or
repairing customer vehicles?
Note: Please include a copy of each page, marked with your comments.
DATE:YOUR NAME:POSITION:
DEALER:DEALER NO.:ADDRESS:
CITY:STATE/PROV./COUNTRY:ZIP/POSTAL CODE:
Page 4
QUICK REFERENCE CHART: QUEST
2009
QUICK REFERENCE CHART: QUEST
Engine Tune-up DataINFOID:0000000003332592
GENERAL SPECIFICATIONS
Cylinder arrangementV-6
3
Displacement cm
Bore and stroke mm (in)95.5 x 81.4 (3.760 x 3.205)
Valve arrangementDOHC
Firing order1-2-3-4-5-6
Number of piston rings
Number of main bearings4
Compression ratio10.0:1
Co mpre ssion press ure k Pa
2
(kg/cm
, psi)/300 rpm
(cu in)
Compression2
Oil1
Standard1,275 (13.0, 185)
Minimum981 (10.0, 142)
Differential limit between cylinders
3,498 (213.45)
98 (1.0, 14)
Cylinder number
SEM713A
Valve timing (IVTC - OFF)
PBIC0187E
abcde f
240°238°- 6°64°8°52°
Unit: degree
SPARK PLUG
Page 5
QUICK REFERENCE CHART: QUEST
2009
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (nominal)1.1 mm (0.043 in)
Front Wheel Alignment (Unladen*1)INFOID:0000000003332591
Accelerator Control ................................................... 6
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PRECAUTIONS
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2009 Quest
< SERVICE INFORMATION >
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"INFOID:0000000004276965
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
ACC-2
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ACCELERATOR CONTROL SYSTEM
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2009 Quest
< SERVICE INFORMATION >
ACCELERATOR CONTROL SYSTEM
Removal and InstallationINFOID:0000000004276966
Adjustable and Non-adjustable Accelerator Pedal
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LBIA0372E
1.Adjustable pedal electric motor2.Adjustable accelerator pedal3.Accelerator position sensor (adjustable pedal)
4.Accelerator position sensor (non-ad-
justable pedal)
5.Non-adjustable accelerator pedal
CAUTION:
• Before removal and installation the accelerator and brake pedals must be in the front most position.
This is to align the base position of the accelerator and brake pedals (adjustable type only).
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor from the accelerator pedal bracket.
• Do not disassemble the accelerator pedal adjusting mechanism (adjustable type only).
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
ADJUSTABLE PEDAL
Removal
1.Move the accelerator and brake pedals to the frontmost position.
2.Turn the ignition switch OFF and disconnect the negative battery terminal.
3.Remove the heater and cooling unit assembly. Refer to ATC-138, "Removal and Installation"
.
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ACCELERATOR CONTROL SYSTEM
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2009 Quest
< SERVICE INFORMATION >
4.Disconnect the adjustable brake pedal cable from the adjustable
pedal electric motor.
• Unlock (1) then pull (2) the adjustable brake pedal cable end
to disconnect it from the adjustable pedal electric motor as
shown.
• When unlocking the cable end, do not spread open the lock
tabs more than is necessary to release the cable end.
5.Disconnect the adjustable pedal electric motor electrical connector.
6.Disconnect the accelerator position sensor electrical connector.
7.Remove the upper and lower accelerator pedal nuts.
8.Remove the adjustable accelerator pedal assembly.
CAUTION:
• Do not disassemble the pedal assembly. Do not remove the accelerator pedal position sensor
from the pedal bracket.
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
9.Disconnect the adjustable accelerator pedal cable from the
adjustable accelerator pedal.
• Unlock (1) then pull (2) the adjustable accelerator pedal cable
end to disconnect it from the adjustable accelerator pedal as
shown.
• When unlocking the cable end, do not spread open the lock
tabs more than is necessary to release the cable end.
NOTE:
The rear view of the adjustable accelerator pedal is shown for
clarity.
LBIA0374E
LBIA0373E
10. Remove the adjustable pedal electric motor from the adjustable accelerator pedal bracket.
Installation
Installation is in the reverse order of removal.
• Check the accelerator pedal for smooth operation. There should be no binding or sticking when applying or
releasing the accelerator pedal.
• Check the accelerator pedal adjustable feature for smooth operation. There should be no binding or sticking
when adjusting the accelerator pedal forward or backward.
• Check that the cable end is locked securely onto the adjustable pedal electric motor.
CAUTION:
Whenever the harness connector of the accelerator pedal position sensor has been disconnected,
perform the “Accelerator Pedal Released Position Learning”. Refer to EC-79, "Accelerator Pedal
Released Position Learning".
NON-ADJUSTABLE PEDAL
Removal
1.Disconnect the accelerator position sensor electrical connector.
2.Remove the upper and lower accelerator pedal nuts.
3.Remove the accelerator pedal assembly.
CAUTION:
• Do not disassemble the pedal assembly. Do not remove the accelerator pedal position sensor
from the pedal bracket.
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
Installation
Installation is in the reverse order of removal.
• Check the accelerator pedal for smooth operation. There should be no binding or sticking when applying or
releasing the accelerator pedal.
CAUTION:
ACC-4
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ACCELERATOR CONTROL SYSTEM
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2009 Quest
< SERVICE INFORMATION >
Whenever the harness connector of the accelerator pedal position sensor has been disconnected,
perform the “Accelerator Pedal Released Position Learning”. Refer to EC-79, "Accelerator Pedal
Released Position Learning".
ADJUSTABLE PEDAL ELECTRIC MOTOR
Removal
1.Move the accelerator and brake pedals to the frontmost position.
2.Turn the ignition switch OFF and disconnect the negative battery terminal.
3.Disconnect the adjustable brake pedal cable from the adjustable
pedal electric motor.
• Unlock (1) then pull (2) the adjustable brake pedal cable end
to disconnect it from the adjustable pedal electric motor as
shown.
• When unlocking the cable end, do not spread open the lock
tabs more than is necessary to release the cable end.
4.Disconnect the adjustable pedal electric motor electrical connector.
LBIA0374E
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5.Disconnect the adjustable accelerator pedal cable from the
adjustable accelerator pedal.
• Unlock (1) then pull (2) the adjustable accelerator pedal cable
end to disconnect it from the adjustable accelerator pedal as
shown.
• When unlocking the cable end, do not spread open the lock
tabs more than is necessary to release the cable end.
NOTE:
The rear view of the adjustable accelerator pedal is shown for
clarity.
LBIA0373E
6.Remove the adjustable pedal electric motor from the adjustable accelerator pedal bracket.
CAUTION:
• Do not disassemble the adjustable pedal electric motor.
• Avoid damage from dropping the adjustable pedal electr ic motor during handling.
• Keep the adjustable pedal electric motor away from water.
Installation
Installation is in the reverse order of removal.
• Check the accelerator pedal adjustable feature for smooth operation. There should be no binding or sticking
when adjusting the accelerator pedal forward or backward.
• Check that the cable end is locked securely onto the adjustable pedal electric motor.
CAUTION:
Whenever the harness connector of the accelerator pedal position sensor has been disconnected,
perform the “Accelerator Pedal Released Position Learning”. Refer to EC-79, "Accelerator Pedal
Released Position Learning".
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SERVICE DATA AND SPECIFICATIONS (SDS)
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2009 Quest
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
Accelerator ControlINFOID:0000000004276967
PEDAL TRAVEL
Accelerator control pedal - total travel 73.2 mm (2.88 in)
Removal and Installation .......................................... 6
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PRECAUTIONS
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2009 Quest
< SERVICE INFORMATION >
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"INFOID:0000000004277421
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
1.Pedal adjusting switch B222.Pedal adjusting motor E109 (view with instrument lower panel LH removed)
SYSTEM DESCRIPTION
The adjustable pedal system power supply is controlled by the pedal adjusting switch.
Power is supplied at all times
• through 40A fusible link (letter m, located in the fuse and fusible link box)
• to circuit breaker-2 terminal 1
• through circuit breaker-2 terminal 2
• to pedal adjusting switch terminal 1.
Ground is supplied
• to pedal adjusting switch terminal 4
• through body grounds B7 and B19.
When pedal is adjusted forward, power is supplied
• through pedal adjusting switch terminal 3
• to pedal adjusting motor terminal 1.
Then ground is supplied
• to pedal adjusting motor terminal 2
• through pedal adjusting switch terminal 2
• through pedal adjusting switch terminal 4
• through body grounds B7 and B19.
With power and ground supplied, accelerator and brake pedals move forward.
When pedal is adjusted backward, power is supplied
• through pedal adjusting switch terminal 2
• to pedal adjusting motor terminal 2.
Then ground is supplied
• to pedal adjusting motor terminal 1
• through pedal adjusting switch terminal 3
• through pedal adjusting switch terminal 4
• through body grounds B7 and B19.
With power and ground supplied, accelerator and brake pedals move backward.
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ADJUSTABLE PEDAL SYSTEM
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2009 Quest
< SERVICE INFORMATION >
WIRING DIAGRAM — PEDAL —
AAJWA0018G
AP-4
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ADJUSTABLE PEDAL SYSTEM
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2009 Quest
< SERVICE INFORMATION >
Trouble DiagnosisINFOID:0000000004277426
WORK FLOW
1.Check the symptom and customer's requests.
2.Perform the preliminary check. Refer to "PRELIMINARY CHECK".
3.According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to "TROUBLE DIAGNOSIS CHART BY SYMPTOM".
4.Does adjustable pedal system operate normally?
YES: GO TO 5.
NO: GO TO 3.
5.Inspection End.
PRELIMINARY CHECK
1.CHECK ADJUSTABLE PEDAL MECHANISM
Check the following.
• Movable part of accelerator pedal or brake pedal is deformed or there is foreign material in it.
• Accelerator pedal or brake pedal is deformed or broken.
OK or NG
OK>> Preliminary check is OK.
NG>> Repair or replace the malfunctioning part and check again.
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TROUBLE DIAGNOSIS CHART BY SYMPTOM
NOTE:
Always check the WORK FLOW before troubleshooting. Refer to "WORK FLOW".
SymptomDiagnosis/service procedureReference page
1. Pedal adjusting switch power supply and ground circuit inspection.
Adjustable pedal system does not operate.
2. Pedal adjusting motor circuit inspection.
3. Replace pedal adjusting motor.
Pedal Adjusting Switch Power Supply And Ground Inspection
1.CHECK PEDAL ADJUSTING SWITCH POWER SUPPLY
1.Turn ignition switch OFF.
2.Disconnect pedal adjusting switch connector.
3.Check voltage between pedal adjusting switch connector B22
terminal 1 and ground.
1 - Ground: Battery voltage
OK or NG
OK>> GO TO 2.
NG>> Repair or replace harness.
2.CHECK PEDAL ADJUSTING SWITCH GROUND CIRCUIT
AP-5, "Trouble
Diagnosis"
AP-5, "Trouble
Diagnosis"
AP-6, "Removal and Installa-
tion"
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ADJUSTABLE PEDAL SYSTEM
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2009 Quest
< SERVICE INFORMATION >
Check continuity between pedal adjusting switch connector B22 terminal 4 and ground.
4 - Ground: Continuity should exist.
OK or NG
OK>> Replace pedal adjusting switch.
NG>> Repair or replace harness.
Pedal Adjusting Motor Circuit Inspection
1.CHECK PEDAL ADJUSTING SWITCH
1.Turn ignition switch OFF.
2.Disconnect pedal adjusting switch.
3.Check continuity between pedal adjusting switch terminals as
follows.
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to
.
AT-77
DTC
Items
(CONSULT-III screen terms)
A/T 1ST GR FNCTNP0731P0731AT-108
A/T 2ND GR FNCTNP0732P0732AT-111
A/T 3RD GR FNCTNP0733P0733AT-116
A/T 4TH GR FNCTNP0734P0734AT-120
A/T 5TH GR FNCTNP0735P0735AT-123
A/T TCC S/V FNCTNP0744 P0744 AT-127
ATF TEMP SEN/CIRCP0710P0710AT-88
CAN COMM CIRCUITU1000U1000AT-77
ELEC TH CONTROL—P1726AT-192
ENG SPD INP PERFOR—P0726AT-106
FLUID TEMP SENP0711P0711AT-93
GEAR LEVER SWITCH—P0825AT-184
PC SOL A(L/PRESS)P0745P0745AT-130
PC SOL B(SFT/PRS)P0775P0775AT-165
PC SOL C(TCC&SFT)P0795P0795AT-174
PC SOL C STC ONP0797P0797AT-179
PNP SW/CIRCP0705P0705AT-83
SHIFTP0780P0780AT-170
SHIFT SOL AP0750P0750AT-135
SHIFT SOL BP0755P0755AT-140
SHIFT SOL CP0760P0760AT-145
SHIFT SOL D P0765P0765AT-155
SHIFT SOL EP0770P0770AT-160
SFT SOL C STUCK ONP0762P0762AT-150
TCM POWER INPT SIGP0882P0882AT-188
TCM PROCESSOR—P0613AT-82
TURBINE SENSORP0717P0717AT-98
VEH SPD SE/CIR-MTR—P0500AT-80
VHCL SPEED SEN-A/TP0722P0722AT-102
*1: These numbers are prescribed by SAE J2012.
OBD-IIExcept OBD-II
CONSULT-III
GST
*1
CONSULT -III
only “TRANSMIS-
SION”
Reference page
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DTC No. IndexINFOID:0000000004278000
NOTE:
AT-5
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INDEX FOR DTC
Revision: October 2008
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< SERVICE INFORMATION >
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to
—P0726ENG SPD INP PERFORAT-106
P0731P0731A/T 1ST GR FNCTNAT-108
P0732P0732A/T 2ND GR FNCTNAT-111
P0733P0733A/T 3RD GR FNCTNAT-116
P0734P0734A/T 4TH GR FNCTNAT-120
P0735P0735A/T 5TH GR FNCTNAT-123
P0744 P0744 A/T TCC S/V FNCTNAT-127
P0745P0745PC SOL A(L/PRESS)AT-130
P0750P0750SHIFT SOL AAT-135
P0755P0755SHIFT SOL BAT-140
P0760P0760SHIFT SOL CAT-145
P0762P0762SFT SOL C STUCK ONAT-150
P0765P0765SHIFT SOL DAT-155
P0770P0770SHIFT SOL EAT-160
P0775P0775PC SOL B(SFT/PRS)AT-165
P0780P0780SHIFTAT-170
P0795P0795PC SOL C(TCC&SFT)AT-174
P0797P0797PC SOL C STC ONAT-179
—P0825GEAR LEVER SWITCHAT-184
P0882P0882TCM POWER INPT SIGAT-188
—P1726ELEC TH CONTROLAT-192
U1000U1000CAN COMM CIRCUITAT-77
CONSULT-III
only “TRANSMIS-
SION”
(CONSULT-III screen terms)
Items
Reference page
AT-6
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< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
PRECAUTIONS
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
Precaution for On Board Diagnosis (OBD) System of A/T and EngineINFOID:0000000004278002
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch “OFF” and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MIL to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
• Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
INFOID:0000000004278001
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Precaution for A/T Assembly or TCM ReplacementINFOID:0000000004278003
• When replacing A/T assembly or TCM, refer to the pattern table below and initialize TCM if necessary.
TCM INITIALIZATION PATTERNS
TCMA/T assemblyErasing EEPROM in TCMRemarks
Replaced with
new one
Not replaced
Replaced with old
one
NOTE:
“Old one” is the TCM or A/T assembly that has been used on other vehicles.
METHOD FOR TCM INITIALIZATION
Not replaced
Replaced with
new or old one
Replaced with
new or old one
Not replaced
Replaced with
new or old one
Not required
Required
AT-7
Not required because the EEPROM in TCM is in the default
state.
Required because data cannot be conformed to previous
data written in the EEPROM in TCM.
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PRECAUTIONS
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< SERVICE INFORMATION >
1.Set the vehicle following the items listed below.
• Ignition switch “ON”.
• Selector lever “P” or “N” position.
• Engine not running.
• Vehicle speed is 0km/h (0 MPH).
• Ignition voltage is more than 10.5V.
• Malfunction was not detected.
2.Touch “WORK SUPPORT”.
3.Touch “INITIALIZATION”.
4.Initialize TCM following the direction in display.
PrecautionINFOID:0000000004278004
NOTE:
Do not remove or disassemble any RE5F22A model transaxle parts unless specified to do so in AT
section.
• Before connecting or disconnecting the TCM harness connec-
tor, turn ignition switch “OFF” and disconnect negative battery cable. Because battery voltage is applied to TCM even if
ignition switch is turned “OFF”.
• When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM pin
terminal, when connecting pin connectors.
• Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. AT-66, "TCM Input/Output Signal Reference Value"
.
SEF289H
SEF291H
MEF040DA
AT-8
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PRECAUTIONS
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< SERVICE INFORMATION >
• After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) CONFIRMATION PROCEDURE”.
The DTC should not be displayed in the “DTC CONFIRMA TION
PROCEDURE” if the repair is completed.
SEF217U
• Always use the specified brand of A/T fluid. Refer to MA-12, "Fluids and Lubricants"
• Use paper rags not cloth rags during work.
• After replacing the A/T fluid, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
• Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to prevent
the internal parts from becoming contaminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transaxle.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.
• It is very important to perform functional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
• Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly . Do not use grease.
• Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
• After overhaul, refill the transaxle with new ATF.
• When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque converter and A T F cooling system.
Always follow the procedures under “Changing A/T Fluid” in the A T section when changing A/T fl uid. Refer to
AT-13, "Changing A/T Fluid"
, AT-13, "Checking A/T Fluid".
.
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Service Notice or PrecautionINFOID:0000000004278005
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to AT-14, "A/T
Fluid Cooler Cleaning". For radiator replacement, refer to CO-16.
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator or the malfunction indicator lamp (MIL). Refer to the table on
AT-69, "CONSULT-III Function (TRANSMISSION)"
result.
• The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memories.
Always perform the procedure on AT-36, "OBD-II Diagnostic Trouble Code (DTC)"
repair and avoid unnecessary blinking of the MIL.
• For details of OBD-II, refer to AT-36
• Certain systems and components, especially those related to OBD, may use the new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to PG-70
L
M
N
O
for the indicator used to display each self-diagnostic
P
to complete the
.
.
AT-9
Page 32
PREPARATION
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2009 Quest
< SERVICE INFORMATION >
PREPARATION
Special Service ToolINFOID:0000000004278006
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool nameDescription
Power toolLoosening bolts and nuts
PBIC0190E
PullerRemoving tapered roller bearing
NT077
Pullera: 60 mm(2.36 in) dia.
b: 35 mm(1.38 in) dia.
INFOID:0000000004278007
NT411
AT-12
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< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
A/T FLUID
A/T FLUID
Changing A/T FluidINFOID:0000000004278008
1.Run the engine to warm up the transaxle until the fluid is at full operating temperature “HOT”.
Temperature range
COLD: 30° – 40° C (86° – 104° F)
HOT: 70° – 80° C (158° – 176° F)
2.Stop the engine.
3.Remove the engine undercover.
4.Drain the A/T fluid by removing the drain plug. Reinstall the drain
plug to the specified tightness using a new drain washer.
Drain plug: 39 N·m (4.0 kg-m, 29 ft-lb)
LLIA0066E
5.Refill the transaxle with new specified A/T fluid through the A/T fluid charging pipe. Always refill the transaxle with the same volume amount that was drained out.
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Fluid grade and capacity: Refer to MA-12.
CAUTION:
Do not overfill the transaxle.
6.Run the engine at idle speed for five minutes.
7.Check fluid level and condition. Refer to AT-13, "Checking A/T Fluid"
. If the fluid is still contaminated,
repeat step 2 through 5.
Checking A/T FluidINFOID:0000000004278009
1.Warm up the engine.
2.Check for any transaxle fluid leaks.
3.Before driving, the fluid level can be checked at fluid temperature using the “COLD” range on the A/T fluid level gauge.
Temperature range
COLD: 30° – 40° C (86° – 104° F)
HOT: 70° – 80° C (158° – 176° F)
a.Park the vehicle on a level surface and set parking brake.
b.Start the engine and move the transaxle selector lever through
each gear position. Leave the selector lever in the “P” park position.
WLIA0014E
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AT-13
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A/T FLUID
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< SERVICE INFORMATION >
c.Check the fluid level with the engine idling.
CAUTION:
Firmly secure the A/T fluid level gauge into the A/T fluid
charging pipe using the attached stopper, this will provi de
an accurate reading on the gauge.
d.Remove the A/T fluid level gauge and wipe it clean with a lint-
free paper.
e.Re-insert the A/T fluid level gauge into the charging pipe as far
as it will go.
f.Remove the A/T fluid level gauge and note the reading. If the
reading is at or below the low side of the range, add the necessary specified A/T fluid through the A/T fluid charging pipe and
then re-insert the A/T fluid level gauge.
CAUTION:
• Do not overfill the transaxle.
• Firmly secure the A/T fluid level gauge into the A/T fluid charging pipe using the attached stopper, this will provide an accurate reading on the gauge, and will keep the gauge in position while
driving.
4.Drive the vehicle for approximately 5 minutes at moderate speeds.
5.Re-check the fluid level at fluid temperatures using the “HOT”
range on the A/T fluid level gauge.
CAUTION:
Firmly secure the A/T fluid level gauge into the A/T fluid
charging pipe using the attached stopper, this will provi de
an accurate reading on the gauge, and will keep the gauge
in position while driving.
LLIA0065E
Temperature range
COLD: 30° – 40° C (86° – 104° F)
HOT: 70° – 80° C (158° – 176° F)
WLIA0014E
6.Check the fluid for the following conditions:
• If the fluid is very dark or smells burned, refer to the AT-13,
"Changing A/T Fluid". Flush the AT fluid cooling system after
repairing the transaxle.
• If the fluid contains frictional material (from the clutches or
bands), remove the radiator and flush the cooler lines using a
cleaning solvent and compressed air after completing repairs
to the transaxle. Refer to AT-14, "A/T Fluid Cooler Cleaning"
.
SMA853B
A/T Fluid Cooler CleaningINFOID:0000000004278010
Whenever an automatic transaxle is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the
radiator must be inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can contaminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1.Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.
2.Identify the inlet and outlet fluid cooler hoses.
AT-14
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A/T FLUID
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< SERVICE INFORMATION >
3.Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4.Allow any A/T fluid that remains in the cooler hoses to drain into
the oil pan.
5.Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler outlet hose.
CAUTION:
• Wear safety glasses and rubber gloves when spraying the
Transmission Cooler Cleaner.
• Spray cooler cleaner only with adequate ventilation.
• Avoid contact with eyes and skin.
• Do not breath vapors or spray mist.
6.Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7.Insert the tip of an air gun into the end of the cooler outlet hose.
8.Wrap a shop rag around the air gun tip and of the cooler outlet
hose.
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SCIA2945E
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SCIA2955E
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9.Blow compressed air regulated to 5 - 9 kg/cm
2
(71 - 128 psi) through the cooler outlet hose for 10 seconds
to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the transaxle by spraying Transmission Cooler
Cleaner in a continuous stream for 5 seconds.
2
14. Blow compressed air regulated to 5 - 9 kg/cm
(71 - 128 psi) through each steel line from the cooler side
back toward the transaxle for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1.Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.
2.Clean the exterior and tip of the cooler inlet hose.
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AT-15
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A/T FLUID
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< SERVICE INFORMATION >
3.Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler outlet hose.
CAUTION:
• Wear safety glasses and rubber gloves when spraying the
Transmission Cooler Cleaner.
• Spray cooler cleaner only with adequate ventilation.
• Avoid contact with eyes and skin.
• Do not breath vapors or spray mist.
4.Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
5.Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.
SCIA2955E
6.Insert the tip of an air gun into the end of the cooler outlet hose.
7.Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
8.Blow compressed air regulated to 5 - 9 kg/cm
2
(71 - 128 psi)
through the cooler outlet hose to force any remaining A/T fluid
into the coffee filter.
9.Remove the coffee filter from the end of the cooler inlet hose.
1.Inspect the coffee filter for debris.
a.If small metal debris less than 1mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and
the procedure is ended.
SCIA2965E
SCIA2966E
SCIA2967E
AT-16
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A/T FLUID
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< SERVICE INFORMATION >
b.If one or more pieces of debris are found that are over 1mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the fluid cooler is not serviceable. The radiator/
fluid cooler must be replaced and the inspection procedure is
ended.
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
Forward clutch 1F/CConnect input shaft 20 to main rear internal gear 10.
Direct clutch 2 D/CConnect input shaft 20 to main sun gear 11.
U/D clutch 3U/D.CConnect U/D sun gear 15 to U/D front planetary carrier 16.
2nd coast brake 42nd C/BLock main sun gear 11.
2nd brake 52nd/BLock coun te rclockwise rotation of main sun gear 11.
1st and reverse brake 61st & R/BLock main front internal gear 13.
U/D brake 7U/D.B Lock U/D sun gear 15.
B5 brake 8B5/BLock U/D rear planetary carrier 18.
One-way clutch No. 1 9O.C1Lock counterclockwise rotat ion of main su n gear 11, when 2nd brake 5 opera-
tions.
One-way clutch No. 2 10O.C2Lock counterclockwise rotation of main front internal gear 13.
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AT-19
Page 42
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
CLUTCH AND BAND CHART
ClutchBrakeOne-way clutch
Shift position
P
R
N
1st
1 ⇔ 2
2nd
F/C
1
D/C2 U/D.C
A/T CONTROL SYSTEM
2nd C/
3
B
2nd/B
4
1st & R/
5
B
6
U/D.B 7B5/B8O.C1 9O.C2
10
Remarks
PARK
POSITION
REVERSE
POSITION
NEUTRAL
POSITION
2 ⇔ 3
*1
D
L
: Operates
: In transition between applied and released.
*1: A/T will not shift to 5th when lever switch is pushed (indicated A/T indicator “4”).
*2: A/T will not shift to 3th when lever switch is pushed (indicated A/T indicator “2”).
NOTE:
When shifting D to L posit ion or lever switch pushes (indicated A/T indicator “4” at D position or “2” at L position), down shift permission
control is activated. Refer to AT-33, "Shift Control"
3rd
3 ⇔ 4
4th
4 ⇔ 5
5th
1st
1 ⇔ 2
*2
2nd
2 ⇔ 3
3rd
.
Automatic shift
1 ⇔ 2 ⇔ 3 ⇔
4 ⇔ 5
Automatic shift
1 ⇔ 2 ⇔ 3
POWER TRANSMISSION
“N” position
Since both the forward clutch and the direct clutch are released, torque from the input shaft drive is not transmitted to the output shaft.
“P” position
• The same as for the “N” position, both the forward clutch and the direct clutch are released, so torque from
the input shaft drive is not transmitted to the output shaft.
• The parking pole linked with the selector lever meshes with the parking gear and fastens the output shaft
mechanically.
AT-20
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< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
A/T CONTROL SYSTEM
A
B
AT
D
E
F
G
SCIA2577E
1.Forward clutch2.Direct clutch3.U/D clutch
4.2nd coast brake5.2nd brake6.1st and reverse brake
7.U/D brake8.B5 brake9.One-way clutch No. 1
10. One-way clutch No. 211. Main sun gear12. Main planetary carrier
13. Main front internal gear14. Main rear internal gear15. U/D sun gear
16. U/D front planetary carrier17. U/D front internal gear18. U/D rear planetary carrier
• Receive input signals sent from various switches and sensors.
• Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
• Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
SCIA2594E
INFOID:0000000004278013
AT-30
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A/T CONTROL SYSTEM
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< SERVICE INFORMATION >
The automatic transaxle senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
A
SENSORS (or SIGNAL)
PNP switch
Throttle angle signal
Throttle position signal
Engine speed signal
Engine torque signal
A/T fluid temperature sensor
Revolution sensor
Turbine revolution sensor
Vehicle speed signal
Lever switch signal
Stop lamp switch signal
CONTROL SYSTEM DIAGRAM
⇒
TCM
Shift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-III communication line
CAN communication line
On board diagnosis
⇒
ACTUATORS
Shift solenoid valve A
Shift solenoid valve B
Shift solenoid valve C
Shift solenoid valve D
Shift solenoid valve E
Pressure control solenoid valve A
Pressure control solenoid valve B
Pressure control solenoid valve C
O/D OFF indicator lamp
Vehicle speed signal MTR
Engine speed signals
Engine torque signals
Input
PNP switchXXXXXX
Lever switchXXXXX
Stop lamp switch sign al
A/T fluid temperature sensorXXXXXX
ASCD
TCM power supply voltage signalXXXXXXX
Shift solenoid valve A/B/C/D/EX XXX
Pressure control solenoid valve AXXXXXXX
Out-
Pressure control solenoid valve BXXXXX
put
Pressure control solenoid valve CXXXX
Self-diagnostics table
*1: Spare for revolution sensor
*2: Spare for throttle angle signal
*3: If these input and output s ignals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kind of error.
*5: CAN communications.
Operation signal
Overdrive cancel signal
(*5)
(*5)
(*1) (*5)
(*5)
(*5)
(*5)
(*5)
(*5)
(*5)
pressure
control
XX XXXX X
(*2)
X
XXXXXX
XXXXXX
Vehicle
speed
control
(*2)
X
XXXXX
XXX
XXX
XXX
Shift
control
Lock-up
control
X
Engine
brake
control
(*2)
X
INFOID:0000000004278014
Fail-safe
function
(*3)
Self-diag-
nostics
function
(*4)
X
(*4)
X
(*4)
X
X
CAN CommunicationINFOID:0000000004278015
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
For details, refer to LAN-3, "CAN Communication System"
Line Pressure ControlINFOID:0000000004278016
• The pressure control solenoid A controls linear line pressure by control signal from TCM and line pressure
for clutches and brakes to reduce shift shock.
• This pressure control solenoid A controls the pressure regulator valve as the signal pressure and adjusts the
pressure of the operating oil discharged from the oil pump to the line pressure most appropriate to the driving state.
.
AT-32
Page 55
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
A/T CONTROL SYSTEM
A
B
AT
D
E
SCIA2605E
LINE PRESSURE CONTROL IS BASED ON THE TCM LINE PRESSURE CHARACTERISTIC P ATTERN
In order to obtain the most appropriate line pressure characteristic to meet the current driving state, the TCM
controls the pressure control solenoid A current valve and thus controls the line pressure.
Shift ControlINFOID:0000000004278017
The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the
clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes
possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change characteristic is attained.
SCIA3569E
Basically TCM programmed for economy mode, but TCM changes to several shift schedule automatically
according to specified condition.
SPECIAL SHIFT MODE
F
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Upslope Mode
When TCM detects upslope from load of engine torque and decrease of acceleration, this mode changes shift
points in high-speed side according to the upslope degree and avoids busy shift of A/T.
Downslope Mode
When TCM detects downslope from increase of acceleration with accelerator full close, this mode operates
moderate engine brake by changing shift points in high-speed side.
Hot Mode Control
This control lowers A T F temperature by changing shift points when the temperature is extremely high.
Down Shift Permission Control
In order to avoid the over speed of the engine, down shift is done only at under a constant vehicle speed.
O
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AT-33
Page 56
A/T CONTROL SYSTEM
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< SERVICE INFORMATION >
UP/DOWN SHIFT LEARNING CONTROL
This control learns the pressure to each clutch or brake in order to reduce shifting shock at each shifting (Up,
Down, Coast down).
N-D SHIFT CONTROL
This control improves the N-D shift quality due to controlling line pressure solenoid valve according to forward
clutch piston stroke learned in N-D shift learning control and applying best hydraulic pressure to forward clutch
at N-D shift (include L).
N-D SHIFT LEARNING CONTROL
This control learns the forward clutch hydraulic pressure due to monitoring a forward clutch engaging time and
a rotation change rate.
N-R SHIFT CONTROL
This control improves the N-R shift quality due to controlling shift pressure solenoid valve according to direct
clutch piston stroke learned in N-R shift learning control and applying best hydraulic pressure to direct clutch
at N-R shift.
N-R SHIFT LEARNING CONTROL
This control learns the direct clutch hydraulic pressure due to monitoring a direct clutch engaging time and a
rotation change rate.
TORQUE REDUCTION CONTROL
This control improves the shift quality due to sending torque reduction request signal from TCM to ECM and
cutting engine torque increase of shift at N-D shift, N-R shift and 1 ⇔ 2 ⇔ 3 ⇔ 4 ⇔ 5.
If accelerator pedal is depressed rapidly, this control establishes the upper limit value of engine torque and
avoids engine flare at 2 ⇔ 3, 3 ⇔ 4 and 4 ⇒ 2 of clutch to clutch shift.
Lock-Up ControlINFOID:0000000004278018
The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
The torque converter clutch control valve operation is controlled by the pressure control solenoid valve C,
which is controlled by a signal from TCM, and the torque converter clutch control valve engages or releases
the torque converter clutch piston.
• In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
pressure control solenoid valve C and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.
A
Lock-up Applied
• In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the pressure control solenoid valve C and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.
SMOOTH LOCK-UP CONTROL
When shifting from the lock-up released state to the lock-up applied state, the current output to the pressure
control solenoid valve C is controlled with the TCM. In this way, when shifting to the lock-up applied state, the
torque converter clutch is temporarily set to the half-clutched state to reduce the shock.
Half-Clutched State
• The current output from the TCM to the pressure control solenoid valve C is varied to steadily increase the
pressure control solenoid valve C pressure.
In this way , the lock-up apply pressure gradually rises and while the torque converter clutch piston is put into
half-clutched status, the torque converter clutch piston operating pressure is increased and the coupling is
completed smoothly.
Slip Lock-up Control
• In the slip region, the pressure control solenoid valve C current is controlled with the TCM to put it into the
half-clutched state. This absorbs the engine torque fluctuation and lock-up operates from low speed.
This raises the fuel efficiency for 4th and 5th gears at both low speed and when the accelerator has a low
degree of opening.
B
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D
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AT-35
Page 58
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
IntroductionINFOID:0000000004278019
The A/T system has two self-diagnostic systems.
The first is the emission-related on board diagnostic system (OBD-II) performed by the TCM in combination
with the ECM. The malfunction is indicated by the MIL (malfunction indicator lamp) and is stored as a DTC in
the ECM memory but not the TCM memory.
The second is the TCM original self-diagnosis indicated by the O/D OFF indicator lamp. The malfunction is
stored in the TCM memory. The detected items are overlapped with OBD-II self-diagnostic items. For detail,
refer to AT-69, "CONSULT-III Function (TRANSMISSION)"
OBD-II Function for A/T SystemINFOID:0000000004278020
The ECM provides emission-related on board diagnostic (OBD-II) functions for the A/T system. One function
is to receive a signal from the TCM used with OBD-related parts of the A/T system. The signal is sent to the
ECM when a malfunction occurs in the corresponding OBD-related part. The other function is to indicate a
diagnostic result by means of the MIL (malfunction indicator lamp) on the instrument panel. Sensors, switches
and solenoid valves are used as sensing elements.
The MIL automatically illuminates in One or T wo Trip Detection Logic when a malfunction is sensed in relation
to A/T system parts.
One or Two Trip Detection Logic of OBD-IIINFOID:0000000004278021
.
ONE TRIP DETECTION LOGIC
If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored in
the ECM memory as a DTC. The TCM is not provided with such a memory function.
TWO TRIP DETECTION LOGIC
When a malfunction is sensed during the first test drive, it is stored in the ECM memory as a 1st trip DTC
(diagnostic trouble code) or 1st trip freeze frame data. At this point, the MIL will not illuminate. — 1st Trip
If the same malfunction as that experienced during the first test drive is sensed during the second test drive,
the MIL will illuminate. — 2nd Trip
The “trip” in the “One or Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation.
DTC and 1st trip DTC can be read by the following methods.
( with CONSULT-III or GST) CONSULT-III or GST (Generic Scan Tool) Examples: P0705, P0710 etc.
These DTC are prescribed by SAE J2012.
(CONSULT-III also displays the malfunctioning component or system.)
• 1st trip DTC No. is the same as DTC No.
• Output of the diagnostic trouble code indicates that the indicated circuit has a malfunction. How-
ever, in case of the Mode II and GST, they do not indicate whether the malfunction is still occurring or
occurred in the past and returned to normal.
CONSULT-III can identify them as shown below, therefore, CONSULT-III (if available) is recommended.
A sample of CONSULT-III display for DTC and 1st trip DTC is shown on the next page. DTC or 1st trip DTC of
a malfunction is displayed in SELF-DIAGNOSTIC RESULTS mode for “ENGINE” with CONSULT-III. Time
data indicates how many times the vehicle was driven after the last detection of a DTC. If the DTC is being
detected currently, the time data will be “0”. If a 1st trip DTC is stored in the ECM, the time data will be “1t”.
Freeze Frame Data and 1st Trip Freeze Frame Data
The ECM has a memory function, which stores the driving condition such as fuel system status, calculated
load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle
speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data,
and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-III
or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-III screen, not on the GST. For
detail, refer to EC-48, "Emission-related Diagnostic Information"
.
AT-36
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
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< SERVICE INFORMATION >
Only one set of freeze frame data (either 1st trip freeze frame data of freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the following priorities to update the data.
PriorityItems
1Freeze frame dataMisfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2Except the above items (Includes A/T related items)
3 1st trip freeze frame data
Both 1st trip freeze frame data and freeze frame data (along with the DTC) are cleared when the ECM memory is erased.
HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT-III, GST or ECM DIAGNOSTIC TEST MODE as
described following.
• If the battery cable is disconnected, the diagnostic trouble code will be lost within 24 hours.
• When you erase the DTC, using CONSULT-III or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to OBD-II. For details, refer to EC-48, "Emission-related Diagnostic Information"
• If a DTC is displayed for both ECM and TCM, it is necessary to be erased for both ECM and TCM.
1.If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2.Turn CONSULT-III “ON” and touch “TRANSMISSION”.
3.Touch “SELF-DIAG RESULTS”.
4.Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
5.Touch “ENGINE”.
6.Touch “SELF-DIAG RESULTS”.
7.Touch “ERASE”. (The DTC in the ECM will be erased.)
How to erase DTC (with GST)
1.If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2.Erase DTC with TCM. Refer to AT-74, "Diagnosis Procedure"
. (The engine warm-up step can be skipped
when performing the diagnosis only to erase the DTC.)
3.Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-123, "Generic Scan Tool (GST)
Function".
How to erase DTC (no tools)
The O/D OFF indicator lamp is located on the instrument panel.
1.If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2.Erase DTC with TCM. Refer to AT-74, "Diagnosis Procedure"
. (The engine warm-up step can be skipped
when performing the diagnosis only to erase the DTC.)
3.Erase DTC with ECM. Refer to EC-48, "Emission-related Diagnostic Information"
.
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Malfunction Indicator Lamp (MIL)
DESCRIPTION
The MIL is located on the instrument panel.
1.The MIL will light up when the ignition switch is turned “ON” without the engine running. This is a bulb check.
• If the MIL does not light up, refer to DI-23
2.When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to
AT-77
.
PriorityDetected items (DTC)
1U1000 CAN communication line
2Except above
Fail-SafeINFOID:0000000004278025
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is a malfunction in a main electronic control input/output signal circuit.
In fail-safe mode, a driving condition is selected according to the malfunctioning location, and line pressure is
set at the maximum. For this reason, the customer will be subjected to uncomfortable “slipping” or “poor acceleration” of the vehicle.
In that case, handle according to the “diagnostics flow” (Refer to AT-41
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the A/T to make driving possible.
NOTE:
Line pressure is set at the maximum in fail-safe mode. Although gear position differs depending on
the type of fail-safe modes, CONSULT-III indicates “5th”.
• No lock-up, no learning control, no special shift mode control.
Fail-safe mode list
Fail-safe modeSelector lever
Fail-safe mode 1
Fail-safe mode 2
(CONSULT-III displays “8”)
Fail-safe mode 3
Gear
*1
position
D position4thOFFOFFOFFOFFOFFOFFOFFOFF
L position2ndOFFOFF ONOFFOFFOFFOFFOFF
R positionReverseOFFOFFOFFOFFONOFFOFFOFF
D position3rdOFFOFFONONOFFOFFOFFOFF
L position2ndOFFOFFONOFFOFFOFFOFFOFF
R positionReverseOFFOFFONOFFONOFFOFFOFF
D position4thOFFOFFOFFOFFOFFOFFOFFOFF
L position2ndOFFOFFONOFFONOFFOFFOFF
R positionReverseOFFOFFOFFOFFONOFFOFFOFF
ABCDEABC
Shift solenoid valve
Pressure control sole-
noid valve
AT-40
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TROUBLE DIAGNOSIS
Pressure control sole-
noid valve
Fail-safe modeSelector lever
D position4thO FFOFFOFFOFFOFFOFFOFFOFF
Fail-safe mode 4
Fail-safe mode 5
Fail-safe mode 6
Fail-safe mode 7
Fail-safe mode 8
(CONSULT-III displays “1”)
Fail-safe mode 9
(CONSULT-III displays “8”)
Fail-safe mode 10
(CONSULT-III displays “6”)
*1: CONSULT-III indicates “5th”.
*2: Reverse gear ratio difference (Gear ratio: 3.342)
*3: 3rd gear ratio difference (Gear ratio: 2.301)
L position4thOFFOFFOFFOFFOFFOFFOFFOFF
R positionReverseOFFOFFOFFOFFOFFOFFOFFOFF
D position4thOFFOFFOFFOFFOFFOFFOFFOFF
L position4thOFFOFFOFFOFFOFFOFFOFFOFF
R positionReverseOFFOFFOFFOFF ONOFFOFFOFF
D position4thOFFOFFOFFOFF OFFOFFOFFOFF
L position2ndOFFOFFONOFFOFFOFFOFFOFF
R positionReverseO FFOFFONOFFOFFOFFOFFOFF
D position4thONOFFOF FOFFOFFOFFOFFOFF
L position2ndONOFFONOFFOFFOFFOFF OFF
R position
D position5thOFFON OFFOFFOFFOFFOFFOFF
L position
R position ReverseOFFONOFFOFFONOFFOFFOFF
D position4thOFFOFF OFFONOFFOFFOFFOFF
L position4thOFFOFFOFFOFFOFFOFFOFFOFF
R positionReverseOFFOFFOFFOFFONOFFOFFOFF
D position4thOFFOFFOFFONOFFOFFOFFOFF
L position3rdOFFOFFONONOFFOFFOFFOFF
R position
Gear
position
Reverse
(2nd)
Reverse
Shift solenoid valve
*1
ABCDEABC
*2
ONOFFONONOFFOFFOFFOFF
*3
OFFONONOFFOFFOFFOFFOFF
*2
OFFOFFONONOFFO FFOFFOFF
How To Perform Trouble Diagnosis for Quick and Accurate RepairINFOID:0000000004278026
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INTRODUCTION
The TCM receives a signal from the vehicle speed signal, ECM (throttle opening) or PNP switch and provides
shift control or lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capable of diagnosing malfunctioning parts while the ECM can store malfunctions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good operating condition and be free of valve seizure, solenoid valve malfunction, etc.
AT-41
SAT631IB
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It is much more difficult to diagnose an error that occurs intermittently rather than continuously. Most intermittent errors are cause d
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-III (or GST) or a circuit tester connected should be
performed. Follow the "WORK FLOW".
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The customer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” as shown on
the example (Refer to "Diagnostic Worksheet Chart") should be
used.
Start your diagnosi s by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SAT632I
SEF234G
WORK FLOW
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symptoms or conditions for a customer complaint.
Make good use of the two sheets provided, “Information From Customer” (Refer to "Information From Customer") and “Diagnostic Worksheet” (Refer to "Diagnostic Worksheet Chart"), to perform the best troubleshooting possible.
Customer name MR/MSModel & YearVIN
Trans. ModelEngineMileage
Incident DateManuf. DateIn Service Date
Frequency Continuous Intermittent ( times a day)
Symptoms Vehicle does not move. ( Any position Particular position)
No up-shift ( 1st → 2nd 2nd → 3rd 3rd → 4th 4th → 5th)
No down-shift ( 5th → 4th 4th → 3rd 3rd → 2nd 2nd → 1st)
Lock-up malfunction
Shift point too high or too low.
Shift shock or slip ( N → D Lock-up Any drive position)
Noise or vibration
No kick down
No pattern select
Others
()
Malfunction indicator lamp (MIL) Continuously lit Not lit
Diagnostic Worksheet Chart
1 Read the item on cautions concerning fail-safe and understand the customer's complaint.AT-39
A/T fluid inspection
2
Stall test, time lag test and line pressure test
3
Leak (Repair leak location.)
State
Amount
Stall test
Engine
Torque converter one-way clutch
Line pressure is low
Forward clutch
Direct clutch
1st and reverse brake
Time lag test
Line pressure is low
Forward clutch
Direct clutch
1st and reverse brake
One-way clutch No. 2
Line pressure inspection - Suspected part:
B5 brake
One-way clutch No. 2
Oil pump
Oil strainer
Oil leak for each range circuit
Oil pump
Oil strainer
Oil leak for “D” position circuit
Oil leak for “R” position circuit
AT-49
AT-49
49
, AT-
AT-44
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TROUBLE DIAGNOSIS
Perform all road tests and enter checks in required inspection items.AT-49
Check before engine is started
The O/D OFF indicator lamp does not come on. AT-193.
Perform self-diagnostics. Enter checks for detected items.
Idle inspection
Engine cannot be started in “P” and “N” position. AT-194.
4-2.
4-3.
In “ P” position, vehicle moves when pushed. AT-195
In “N” position, vehicle moves. AT-195
Large shock when shifted from “N” to “D” position. AT-196
Vehicle does not creep backward in “R” position. AT-196
Vehicle does not creep forward in “D” or “L” position. AT-197
Driving tests
Part 1
Vehicle cannot be started from D1. AT-198
A/T does not shift: D1 → D2. AT-199
A/T does not shift: D2 → D3. AT-200
A/T does not shift: D3 → D4. AT-201
A/T does not shift: D4 → D5. AT-202
A/T does not perform lock-up. AT-203
A/T does not hold lock-up condition. AT-203.
Lock-up is not released. AT-204
Lock-up function. AT-127
Shift function. AT-170
Pressure control solenoid valve A. AT-130
Pressure control solenoid valve B. AT-165
Pressure control solenoid valve C. AT-174
Shift solenoid valve A. AT-135
Shift solenoid valve B. AT-140
Shift solenoid valve C. AT-145
Shift solenoid valve D. AT-155
Shift solenoid valve E. AT-160
Pressure control solenoid valve C stuck ON. AT-179
Shift solenoid valve C stuck ON. AT-150
Lever switch circuit. AT-184
TCM power input signal. AT-188
Electric throttle control system. AT-192
CAN communication. AT-77
Battery
Other
.
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.
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.
.
.
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.
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AT-54
AT-54
AT-55
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AT-45
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Part 2
Vehicle cannot be started from D1. AT-198.
A/T does not shift: D1 → D2. AT-199
A/T does not shift: D2 → D3. AT-200
A/T does not shift: D3 → D4. AT-201
Part 3
A/T does not shift: 5th gear → 4th gear, when lever switch “OFF”→“ON”. AT-205.
A/T does not shift: 4th gear → 3rd gear, when selector lever “D”→“L”. AT-206
A/T does not shift: 3rd gear → 2nd gear, when lever switch “OFF”→“ON”. AT-207
A/T does not shift: 2nd gear → 1st gear, when release accelerator pedal. AT-207
Vehicle does not decelerate by engine brake. AT-208
Perform self-diagnostics. Enter checks for detected items.
5
6 Perform all road tests and enter the checks again for the required items.AT-49
7
8 Erase the results of the self-diagnostics from the TCM.AT-69AT-74
Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunction
parts.
For any remaining NG items, perf orm the “diagnos tics procedure” and repair o r replace the mal function p arts.
See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection procedures.)
1st gear function. AT-108
2nd gear function. AT-111
3rd gear function. AT-116
4th gear function. AT-120
5th gear function. AT-123
Lock-up function. AT-127
Shift function. AT-170
Pressure control solenoid valve A. AT-130
Pressure control solenoid valve B. AT-165
Pressure control solenoid valve C. AT-174
Shift solenoid valve A. AT-135
Shift solenoid valve B. AT-140
Shift solenoid valve C. AT-145
Shift solenoid valve D. AT-155
Shift solenoid valve E. AT-160
Pressure control solenoid valve C stuck ON. AT-179
Shift solenoid valve C stuck ON. AT-150
Lever switch circuit. AT-184
TCM power input signal. AT-188
Electric throttle control system. AT-192
CAN communication. AT-77
Battery
Other
.
.
.
.
.
.
.
.
.
.
.
.
.
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.
.
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.
.
AT-57
AT-57
AT-59
AT-46
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< SERVICE INFORMATION >
A/T Electrical Parts LocationINFOID:0000000004278027
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WCIA0583E
AT-47
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TROUBLE DIAGNOSIS
1.A. TCM (transmission control module
(view with glove box removed)
4.A. Turbine revolution sensor F37
B. Terminal cord assembly F30, F62
C. Park/neutral position (PNP) switch
F29
(view with battery tray removed)
2.A. Shift lock button
B. Overdrive control switch
C. Shift position indicator
5.Revolution sensor F38
(view with intake air duct removed)
3.O/D OFF indicator
6.Accelerator pedal position sensor
harness connector E20
AT-48
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Circuit DiagramINFOID:0000000004278028
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Inspections Before Trouble DiagnosisINFOID:0000000004278029
A/T FLUID CHECK
Fluid leakage and fluid level check
• Inspect for fluid leakage and check the fluid level. Refer to MA-28, "A/T FLUID : Checking A/T Fluid".
AT-49
BCWA0594E
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Fluid condition check
Inspect the fluid condition.
Fluid statusConceivable CauseRequired Operation
Replace the A/T fluid and check the
Varnished (viscous
varnish state)
Milky white or
cloudy
Large amount of
metal powder mixed
in
Clutch, brake
scorched
Water in the fluid
Unusual wear of
sliding parts within
A/T
STALL TEST
Stall test procedure
1.Inspect the amount of engine oil. Replenish the engine oil if necessary.
2.Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80°C (122 to 176°F). Inspect the
amount of A/T fluid. Replenish if necessary.
3.Switch of A/C and light etc. are off.
A/T main unit and the vehicle for
malfunctions (wire harnesses, cooler pipes, etc.)
Replace the A/T fluid and check for
places where water is getting in.
Replace the A/T fluid and check for
improper operation of the A/T.
SAT638A
4.Securely engage the parking brake so that the tires do not turn.
5.Engine start, apply foot brake, and place selector lever in “D”
position.
6.While holding down the foot brake, gradually press down the
accelerator pedal.
7.Quickly read off the stall speed, then quickly remove your foot
from the accelerator pedal.
CAUTION:
Do not hold down the accelerator pedal for more than 5 seconds during this test.
8.Move the selector lever to the “N” position.
9.Cool down the A/T fluid.
CAUTION:
Run the engine at idle for at least one minute.
10. Repeat step 5 through 9 with selector lever in “L” and “R” positions.
SAT647B
SCIA7463E
SAT514G
AT-50
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TROUBLE DIAGNOSIS
Stall speed:2,430 - 2,730 rpm
Judgement stall test
Selector lever position
D, LR
HO
OH
Stall rotation
LL• Engine or torque converter one-way clutch
HH
O: Stall speed within standard value position
H: Stall speed higher than standard value
L: Stall speed lower than standard value
Possible cause
• Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
valve malfunction)
• Forward clutch (slipping)
• One-way clutch No. 2
• Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
valve malfunction)
• Direct clutch (slipping)
• 1st and reverse brake (slipping)
• Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
valve malfunction)
• B5 brake (slipping)
•Oil pump
• Oil strainer (clogging)
• Oil leak for each range circuit
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TIME LAG TEST
Time lag test procedure
1.Inspect the amount of engine oil. Replenish the engine oil if necessary.
2.Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80°C (122 to 176°F). Check the
amount of A/T fluid. Replenish if necessary.
3.Switch of A/C and light etc. are off.
4.Securely engage the parking brake so that the tires do not turn.
5.Engine start, apply foot brake.
6.Measure time lag by using stopwatch from moment when shift
lever is shifted in “N” to “D” position and “N” to “R” position until
moment slightly shock can be felt.
CAUTION:
• Make sure to take 3 measurement and take the average
value.
• Make sure to keep interval for more than one minute
between time lag tests.
(That purpose is to remove clutch/brake pressure was left
unfinished.)
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SCIA7463E
Time lag:
“N” to “D” position:Less than 0.7 sec.
“N” to “R” position:Less than 1.2 sec.
AT-51
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< SERVICE INFORMATION >
Judgement time lag test
Result of time lag testPossible cause
• Line pressure is low (pressure control solenoid valv e A malfunction, prim ary regulator
valve malfunction)
Longer than standards “N” to “D” position
Longer than standards “N” to “R” position
LINE PRESSURE TEST
Line pressure test port
Location of line pressure test port is show in the figure.
• Forward clutch (slipping)
• One-way clutch No. 2
• Oil leak for “D” range circuit
• Line pressure is low
• Direct clutch (slipping)
• 1st and reverse brake (slipping)
• Oil leak for “R” range circuit
• Oil pump
• Oil strainer (clogging)
SCIA2669E
Line pressure test procedure
1.Inspect the amount of engine oil and replenish if necessary.
2.Drive the car for about 10 minutes to warm it up so that the A/T fluid reaches in range of 50 to 80°C (122
to 176°F), then inspect the amount of A/T fluid and replenish if necessary.
NOTE:
The automatic fluid temperature rises in range of 50 to 80°C (122 to 176°F) during 10 minutes of
driving.
3.Switch of A/C and light etc. are off.
4.After warming up A/T, remove the oil pressure detection plug and install the oil pressure gauge [SST: (J34301-C)] and adapter [SST: (J-45542)].
CAUTION:
Make sure to check no oil leak after installing oil pressure gage.
5.Securely engage the parking brake so that the tires do not turn.
SCIA7463E
AT-52
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6.Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:
• Keep the brake pedal pressed all the way down during
measurement.
• When measuring the line pressure at the stall speed, refer
to "STALL TEST".
7.After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque.
Higher than standards both “D”, “L” and “R” positions
Lower than standards both “D”, “L” and “R” positions
Lower than standards only “D” position
Lower than standards only “R” position
• Pressure control solenoid valve A malfunction
• Primary regulator valve malfunctio n
• Pressure control solenoid valve A malfunction
• Primary regulator valve malfunctio n
• Oil pump malfunction
• B5 bake malfunction
• Oil leak for each range circuit malfunction
• Oil leak for “D” range circuit malfunction
• Forward clutch malfunction
• Oil leak for “R” range circuit malfunction
• Direct clutch malfunction
• 1st and reverse brake malfunction
ROAD TEST
SAT493G
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Description
• The road test inspects overall performance of the A/T and analyzes possible malfunction causes.
• The road test is perform in the following three stages.
1.Check before engine is started. Refer to AT-54
2.Check at idle. Refer to AT-54
3.Cruise test
• Inspect all the items from Part 1 to Part 3. Refer to AT-55
57, AT-57.
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AT-53
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< SERVICE INFORMATION >
• Before beginning the road test, check the test procedure and
inspection items.
• Test all inspection items until the symptom is uncovered. Diagnose
NG items when all road tests are complete.
SAT496G
Check Before Engine Is StartedINFOID:0000000004278030
1.CHECK O/D OFF INDICATOR LAMP
1.Park vehicle on level surface.
2.Move selector lever to “P” position.
3.Turn ignition switch “OFF” and wait at least 10 seconds.
4.Turn ignition switch “ON”. (Do not start engine.)
Does O/D OFF indicator lamp light up for about 2 seconds?
YES>> 1.Turn ignition switch “OFF”.
2.Perform the self-diagnostics and record all NG items on the diagnostics worksheet. Refer to
AT-74, "Diagnosis Procedure"
3.Go to AT-54, "Check at Idle"
No>> Stop the road test and go to AT-193, "O/D OFF Indicator Lamp Does Not Come On"
.
.
.
Check at IdleINFOID:0000000004278031
1.CHECK STARTING THE ENGINE
1.Park vehicle on level surface.
2.Move selector lever to “P” position.
3.Turn ignition switch “OFF”.
4.Turn ignition switch “START”.
Does the engine start?
YES>> GO TO 2.
No>> Stop the road test and go to AT-194, "Engine Cannot Be Started in "P" or "N" Position"
.
2.CHECK STARTING THE ENGINE
1.Turn ignition switch "ON". (Do not start engine.)
2.Move selector lever in “D”, “L” or “R” position.
3.Turn ignition switch “START”.
Does the engine start in either position?
YES>> Stop the road test and go to AT-194, "Engine Cannot Be Started in "P" or "N" Position".
No>> GO TO 3.
3.CHECK “P” POSITION FUNCTIONS
1.Move selector lever to “P” position.
2.Turn ignition switch “OFF”.
3.Release the parking brake.
4.Push the vehicle forward or backward.
5.Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
YES>> Enter a check mark at “In P position, vehicle moves when pushed” on the diagnostics worksheet,
then continue the road test.
No>> GO TO 4.
4.CHECK “N” POSITION FUNCTIONS
1.Start the engine.
AT-54
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2.Move selector lever to “N” position.
3.Release the parking brake.
Does vehicle move forward or backward?
YES>> Enter a check mark at “In N position, vehicle moves” on the diagnostics worksheet, then continue
the road test.
No>> GO TO 5.
5.CHECK SHIFT SHOCK
1.Engage the brake.
2.Move selector lever to “D” position.
When the transaxle is shifted from
YES>> Enter a check mark at “Large shock when shifted from N to D position” on the diagnostics work-
sheet, then continue the road test.
No>> GO TO 6.
“N” to “D”, is there an excessive shock?
6.CHECK “R” POSITION FUNCTIONS
1.Engage the brake.
2.Move selector lever to “R” position.
3.Disengage the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES>> GO TO 7.
No>> Enter a check mark at “Vehicle does not creep backward in R position” on the diagnostics work-
sheet, then continue the road test.
7.CHECK “D” AND “L” POSITIONS FUNCTIONS
Inspect whether the vehicle moves forward when the transaxle is put into the “D” and “L” positions.
Does the vehicle move forward in the
YES>> Go to AT-55, "Cruise T est - Part 1", AT-57, "Cruise Test - Part 2", and A T-57, "Cruise T est - Part 3" .
No>> Enter a check mark at “Vehicle does not creep forward in D or L position” on the diagnostics work-
sheet, then continue the road test.
Cruise Test - Part 1INFOID:0000000004278032
“D” and “L” positions?
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1.CHECK STARTING OUT FROM D1
1.Drive the vehicle for about 10 minutes to warm up the engine oil and A/T fluid.
Appropriate temperature for the A/T fluid: 50 - 80°C (122 - 176°F)
2.Park the vehicle on a level surface.
3.Move selector lever to “P” position.
4.Start the engine.
5.Move selector lever to “D” position.
6.Press the accelerator pedal about half way down to accelerate the vehicle.
With CONSULT-III
Read off the gear positions.
Starts from D1?
YES>> GO TO 2.
No>> Enter a check mark at “Vehicle cannot be started from D1” on the diagnostics worksheet, then
continue the road test.
2. CHECK SHIFT-UP D1 → D2
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D1 → D2) at the appropriate speed.
• Refer to AT-58
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift
YES>> GO TO 3.
.
-up D1 → D2 at the correct speed?
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AT-55
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< SERVICE INFORMATION >
No>> Enter a check mark at “A/T does not shift D1 → D2” on the diagnostics worksheet, then continue
the road test.
3.CHECK SHIFT-UP D2 → D3
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D2 → D3) at the appropriate speed.
• Refer to AT-58
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift
YES>> GO TO 4.
No>> Enter a check mark at “A/T does not shift D2 → D3” on the diagnostics worksheet, then continue
.
-up D2 → D3 at the correct speed?
the road test.
4.CHECK SHIFT-UP D3 → D4
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D3 → D4) at the appropriate speed.
• Refer to AT-58
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift
YES>> GO TO 5.
NO>> Enter a check mark at “A/T does not shift D3 → D4” on the diagnostics worksheet, then continue
.
-up D3 → D4 at the correct speed?
the road test.
5.CHECK SHIFT-UP D4 → D5
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D4 → D5) at the appropriate speed.
• Refer to AT-58
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift
YES>> GO TO 6.
NO>> Enter a check mark at “A/T does not shift D4 → D5” on the diagnostics worksheet, then continue
.
-up D4 → D5 at the correct speed?
the road test.
6.CHECK LOCK-UP
When releasing accelerator pedal from D5, check lock-up from D5 to L/U.
• Refer to AT-58
With CONSULT-III
Read the lock-up status.
Does it lock-up?
YES>> GO TO 7.
NO>> Enter a check mark at “A/T does not perform lock-up” on the diagnostics worksheet, then continue
.
the road test.
7.CHECK LOCK-UP HOLD
Check lock−up hold.
Does it maintain lock-up status?
YES>> GO TO 8.
NO>> Enter a check mark at “A/T does not hold lock-up condition” on the diagnostics worksheet, then
continue the road test.
8.CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate.
With CONSULT-III
Read the lock-up status.
AT-56
Page 79
TROUBLE DIAGNOSIS
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
Does lock-up cancel?
YES>> 1.Stop the vehicle.
2.Go to Cruise test - Part 2 (Refer to AT-57
NO>> Enter a check mark at “Lock-up is not released” on the diagnostics worksheet, then continue the
road test. Go to Cruise test - Part 2 (Refer to AT-57
).
).
Cruise Test - Part 2INFOID:0000000004278033
A
B
1.CHECK STARTING FROM D1
1.Move selector lever the “D” position.
2.Accelerate at half throttle.
With CONSULT-III
Read the gear position.
Does it start from D1?
YES>> GO TO 2.
NO>> Enter a check mark at “Vehicle cannot be started from D1” on the diagnostics worksheet, then
continue the road test.
2.CHECK SHIFT-UP D1 → D2
Press the accelerator pedal down all the way and inspect whether or not the transaxle shifts up (D1 → D2) at
the correct speed.
• Refer to AT-58
With CONSULT-III
Read the gear position, accelerator angle and vehicle speed.
Does the A/T shift
YES>> GO TO 3.
NO>> Enter a check mark at “A/T does not shift D1 → D2” on the diagnostics worksheet, then continue
.
-up D1 → D2 at the correct speed?
the road test.
3.CHECK SHIFT-UP D2 → D3
Press the accelerator pedal down all the way and inspect whether or not the transaxle shifts up (D2 → D3) at
the correct speed.
• Refer to AT-58
With CONSULT-III
Read the gear position, accelerator angle and vehicle speed.
Does the A/T shift
YES>> GO TO 4.
NO>> Enter a check mark at “A/T does not shift D2 → D3” on the diagnostics worksheet, then continue
.
-up D2 → D3 at the correct speed?
the road test.
4.CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE
AT
D
E
F
G
H
I
J
K
L
M
When the transaxle changes speed D2 → D3, return the accelerator pedal.
Does the A/T shift
YES>> 1.Stop the vehicle.
NO>> Enter a check mark at “A/T does not shift D3 → D4” on the diagnostics worksheet, then continue
Cruise Test - Part 3INFOID:0000000004278034
1.CHECK SHIFT DOWN (D5 TO D4)
1.Confirm lever switch is in OFF position. (O/D OFF indicator lamp “OFF”.)
2.Confirm gear selector lever is in D position.
3.Accelerate vehicle using half-throttle to D5.
4.Release accelerator pedal.
5.Push lever switch while driving in D5. (O/D OFF indicator lamp “ON” and A/T indicator “4”.)
With CONSULT-III
-up D3 → D4 and apply the engine brake?
2.Go to Cruise test - Part 3 (Refer to AT-57
the road test.
AT-57
N
).
O
P
Page 80
TROUBLE DIAGNOSIS
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
Read the gear position, throttle degree of opening, and vehicle speed.
Does A/T shift from D5 to D4?
YES>> GO TO 2.
NO>> Enter a check mark at “Vehicle does not shift: 5th gear → 4th gear, when lever switch OFF → ON”
on diagnostics worksheet, then continue the road test.
2.CHECK SHIFT DOWN (D4 TO L3)
1.Driving in D4.
2.Move selector lever from D to L position while D4.
3.Release accelerator pedal.
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does A/T shift from D4 to L3?
YES>> GO TO 3.
NO>> Enter a check mark at “Vehicle does not shift: 4th gear → 3rd gear, when selector lever D → L
position” on diagnostics worksheet, then continue the road test.
3.CHECK SHIFT DOWN (L3 TO L2)
1.Confirm lever switch is in OFF position. (A/T indicator “3”.)
2.Confirm gear selector lever is in L position.
3.Accelerate vehicle using half-throttle to L3.
4.Release accelerator pedal.
5.Push lever switch while driving in L3. (A/T indicator “2”.)
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does A/T shift from L3 to L2?
YES>> GO TO 4.
NO>> Enter a check mark at “Vehicle does not shift: 3rd gear → 2nd gear, when lever switch OFF →
ON” on diagnostics worksheet, then continue the road test.
4.CHECK SHIFT DOWN (L2 TO L1)
Release accelerator pedal.
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does A/T shift from L2 to L1?
YES>> GO TO 5.
NO>> Enter a check mark at “Vehicle does not shift: 2nd gear → 1st gear, when release accelerator
pedal” on diagnostics worksheet, then continue the road test.
5.CHECK ENGINE BRAKE
Depress and release accelerator pedal while driving in L1.
With CONSULT-III
Read the gear position.
Does engine braking effectively reduce speed in L1 position?
YES>> 1.Stop the vehicle.
2.Perform the self-diagnostics. Refer to AT-74, "Diagnosis Procedure"
NO>> Enter a check mark at “Vehicle does not decelerate by engine brake” on the diagnostics work-
sheet, then continue trouble diagnosis.
Shift ScheduleINFOID:0000000004278035
VEHICLE SPEED WHEN SHIFTING GEARS
.
AT-58
Page 81
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
Accelerator angle
100 %
90 %
80 %
70 %
60 %
50 %
40 %
30 %
20 %
10 %
Vehicle speed km/h (MPH) (Approx.)
1→D2D2→D3D3→D4D4→D5D5→D4D4→D3D3→D2D2→D1
D
67
(42)
67
(42)
65
(40)
53
(33)
46
(29)
43
(27)
38
(24)
33
(21)
23
(14)
17
(11)
105
(65)
105
(65)
100
(62)
80
(50)
71
(44)
67
(42)
60
(37)
50
(31)
35
(22)
29
(18)
170
(106)
170
(106)
152
(94)
125
(78)
106
(66)
97
(60)
89
(55)
70
(43)
49
(30)
39
(24)
241
(150)
241
(150)
227
(141)
185
(115)
156
(97)
145
(90)
130
(81)
108
(67)
77
(48)
58
(36)
230
(143)
230
(143)
178
(111)
147
(91)
108
(67)
98
(61)
89
(55)
68
(42)
49
(30)
44
(27)
160
(99)
160
(99)
142
(88)
137
(85)
78
(48)
68
(42)
56
(35)
45
(28)
32
(20)
32
(20)
92
(57)
92
(57)
86
(53)
68
(42)
46
(29)
40
(25)
30
(19)
25
(16)
22
(14)
22
(14)
(28)
(28)
(28)
(24)
(14)
(11)
45
45
45
38
22
18
13
(8)
12
(7)
(5)
(5)
A
B
AT
D
E
F
8
8
G
H
VEHICLE SPEED WHEN PERFORMING AND RELEASING COMPLETE LOCK-UP
Accelerator angle
50 %190 (118)137 (85)
15%101 (63)72 (45)
0 - 8 %73 (45)70 (43)
• Lock-up vehicle speed indicates the speed in D position.
• Perform lock-up inspection after warming up engine.
• Lock-up vehicle speed may vary depending on the driving conditions and circumstances.
Lock-up “ON”Lock-up “OFF”
Vehicle speed km/h (MPH) (Approx.)
VEHICLE SPEED WHEN PERFORMING AND RELEASING SLIP LOCK-UP
Accelerator angleGear position
0 - 10 %
• Slip lock-up vehicle speed indicates the speed in D position.
• Perform slip lock-up inspection after warming up engine.
• Slip lock-up vehicle speed may vary depending on the driving conditions and circumstances.
4th 45 (28)42 (26)
5th 58 (36)55 (34)
Slip lock-up “ON”Slip lock-up “OFF”
Vehicle speed km/h (MPH) (Approx.)
Symptom ChartINFOID:0000000004278036
I
J
K
L
M
N
O
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
CAUTION:
Do not remove or disassemble any RE5F22A model transaxle parts unless specified to do so in AT
section.
P
AT-59
Page 82
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
With selector lever in D position, driving is
not possible.
With selector lever in R position, driving is
not possible.
No shock at all or the clutch slips when vehicle changes speed.
Time lag is large. (“N” →“ D” position)
Reference
page
1. Fluid level and stateAT-49
2. Control cable and PNP switch adjustment
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle 10. AccumulatorAT-232
ON vehicle
OFF vehicle
3. TCMAT-66
4. Pressure control solenoid valve AAT-130
5. Control valve assemblyAT-222
6. Torque converterAT-224
7. Forward and direct clutch assemblyAT-232
8. B5 brakeAT-259
9. One-way clutch No.2AT-232
1. Fluid level and stateAT-49
2. Control cable and PNP switch adjustment
3. TCMAT-66
4. Shift solenoid valve AAT-135
5. Shift solenoid valve BAT-140
6. Pressure control solenoid valve AAT-130
7. Control valve assemblyAT-222
8. Torque converterAT-232
9. Forward and direct clutch assemblyAT-232
10. 1st and reverse brakeAT-232
11. B5 brakeAT-259
1. Fluid level and stateAT-49
2. Control cable and PNP switch adjustment
3. TCMAT-66
4. Shift solenoid valve AAT-135
5. Shift solenoid valve BAT-140
6. Shift solenoid valve EAT-160
7. Pressure control solenoid valve AAT-130
8. Pressure control solenoid valve CAT-174
9. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolution sensorAT-98
4. TCMAT-66
5. Control valve assemblyAT-222
6. AccumulatorAT-232
7. Forward and direct clutch assemblyAT-232
AT-221
219
AT-221
219
AT-221
219
, AT-
, AT-
, AT-
AT-60
Page 83
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
ON vehicle
Time lag is large. (“N” →“ R” position)
OFF vehicle
Engine does not start in “N”, “P” position.ON vehicle
Engine starts in positions other than “N” or
“P”.
Engine stalls when selector leve r shifted “N”
→ “D”, “R”.
Engine stall when vehicle sl ow down.ON vehicle
Acceleration is extremely poor.ON vehicle
Gear does not change from D1 → D2.
ON vehicle
ON vehicle
ON vehicle
OFF vehicle
Reference
page
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolut ion sensorAT-98
4. TCMAT-66
5. Shift solenoid valve EAT-160
6. Control valve assemblyAT-222
7. Forward and direct clutch assemblyAT-232
8. 1st and reverse brakeAT-232
1. Ignition switch and starterPG-3
2. Control cable adjustmentAT-221
3. PNP switchAT-83
1. Ignition switch and starterPG-3
2. Control cable adjustmentAT-221
3. PNP switchAT-83
1. Fluid level and stateAT-49
2. TCMAT-66
3. Shift solenoid valve DAT-155
4. Pressure control solenoid valve CAT-174
5. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. TCMAT-66
3. Shift solenoid valve DAT-155
4. Shift solenoid valve EAT-160
5. Pressure control solenoid valve CAT-174
6. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. Control cable and PNP switch adjustment
3. Engine speed signalAT-106
4. Electric throttle control signalAT-192
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve AAT-135
5. Shift solenoid valve BAT-140
6. Shift solenoid valve CAT-145
7. Shift solenoid valve DAT-155
8. Control valve assemblyAT-222
9. 2nd coast brake
10. 2nd brakeAT-251
11. One-way clutch No.1AT-257
12. One-way clutch No.2AT-232
, SC-8
, SC-8
AT-221
219
AT-251
257
, AT-
, AT-
A
B
AT
D
E
F
G
H
I
J
K
L
M
N
O
P
AT-61
Page 84
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
Gear does not change from D2 → D3.
Gear does not change from D3 → D4.
Gear does not change from D4 → D5.
In D range, does not downshift to 1st gear.
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle
Reference
page
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve BAT-140
5. Shift solenoid valve CAT-145
6. Shift solenoid valve DAT-155
7. Pressure control solenoid valve AAT-130
8. Control valve assemblyAT-222
9. U/D brakeAT-232
10. B5 brakeAT-259
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve BAT-140
5. Shift solenoid valve CAT-145
6. Shift solenoid valve DAT-155
7. Control valve assemblyAT-222
8. U/D clutchAT-232
9. U/D brakeAT-232
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve BAT-140
5. Shift solenoid valve CAT-145
6. Control valve assemblyAT-222
7. Forward and direct clutch assemblyAT-232
8. 2nd coast brake
9. One-way clutch No.1AT-257
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve AAT-135
5. Shift solenoid valve BAT-140
6. Shift solenoid valve CAT-145
7. Shift solenoid valve DAT-155
8. Control valve assemblyAT-222
9. 2nd coast brake
10. 2nd brakeAT-251
11. One-way clutch No.1AT-257
12. One-way clutch No.2AT-232
AT-251
257
AT-251
257
, AT-
, AT-
AT-62
Page 85
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
In D range, does not downshift to 2nd gear.
In D range, does not downshift to 3rd gear.
In D range, does not downshift to 4th gear.
Does not lock-up or lock-up is not releas ed.
Reference
page
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle
ON vehicle
OFF vehicle 9. Torque converterAT-224
4. Shift solenoid valve BAT-140
5. Shift solenoid valve CAT-145
6. Shift solenoid valve DAT-155
7. Pressure control solenoid valve AAT-130
8. Control valve assemblyAT-222
9. U/D brakeAT-232
10. B5 brakeAT-259
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve BAT-140
5. Shift solenoid valve CAT-145
6. Shift solenoid valve DAT-155
7. Control valve assemblyAT-222
8. U/D clutchAT-232
9. U/D brakeAT-232
1. Fluid level and stateAT-49
2. TCMAT-66
3. Electric throttle control signalAT-192
4. Shift solenoid valve BAT-140
5. Shift solenoid valve CAT-145
6. Control valve assemblyAT-222
7. Forward and direct clutch assemblyAT-232
8. 2nd coast brake
9. One-way clutch No.1AT-257
1. Fluid level and stateAT-49
2. Stop lamp switch signalAT-209
3. ATF temperature sensorAT-88
4. TCMAT-66
5. Shift solenoid valve CAT-145
6. Shift solenoid valve DAT-155
7. Pressure control solenoid valve CAT-174
8. Control valve assemblyAT-222
AT-251
257
, AT-
A
B
AT
D
E
F
G
H
I
J
K
L
M
N
O
P
AT-63
Page 86
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
ON vehicle
Engine brake does not work.
OFF vehicle
Shift point is high or low.ON vehicle
ON vehicle
Large shock. (“N” →“ D” position)
OFF vehicle
ON vehicle
Large shock. (“N” →“ R” position)
OFF vehicle
Reference
page
1. Fluid level and stateAT-49
2. TCMAT-66
3. Shift solenoid valve EAT-160
4. Electric throttle control signalAT-192
5. Control valve assemblyAT-222
6. 2nd coast brake
7. U/D brakeAT-232
8. B5 brakeAT-259
1. Pressure control solenoid valve AAT-130
2. Engine speed signalAT-106
3. Electric throttle control signalAT-192
4. Revolution sensorAT-102
5. TCMAT-66
6. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolution sensorAT-98
4. ATF temperature sensorAT-88
5. Shift solenoid valve AAT-135
6. Shift solenoid valve BAT-140
7. Pressure control solenoid valve AAT-130
8. TCMAT-66
9. Control valve assemblyAT-222
10. AccumulatorAT-232
11. Forward and direct clutch assemblyAT-232
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolution sensorAT-98
4. ATF temperature sensorAT-88
5. Shift solenoid valve EAT-160
6. Pressure control solenoid valve BAT-165
7. TCMAT-66
8. Control valve assemblyAT-222
9. Forward and direct clutch assemblyAT-232
10. 1st and reverse brakeAT-232
AT-251
257
, AT-
AT-64
Page 87
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
Shock is too large when shift up.ON vehicle
Shock is too large for coast down.ON vehicle
Reference
page
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolut ion sensorAT-98
4. ATF temperature sensorAT-88
5. TCM power input signalAT-188
6. Shift solenoid valve AAT-135
7. Shift solenoid valve BAT-140
8. Shift solenoid valve CAT-145
9. Shift solenoid valve DAT-155
10. Shift solenoid valve EAT-160
11. Pressure control solenoid valve AAT-130
12. Pressure control solenoid valve BAT-165
13. Pressure control solenoid valve CAT-174
14. TCMAT-66
15. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolut ion sensorAT-98
4. ATF temperature sensorAT-88
5. TCM power input signalAT-188
6. Shift solenoid valve AAT-135
7. Shift solenoid valve BAT-140
8. Shift solenoid valve CAT-145
9. Shift solenoid valve DAT-155
10. Shift solenoid valve EAT-160
11. Pressure control solenoid valve AAT-130
12. Pressure control solenoid valve BAT-165
13. Pressure control solenoid valve CAT-174
14. TCMAT-66
15. Control valve assemblyAT-222
A
B
AT
D
E
F
G
H
I
J
K
L
M
N
O
P
AT-65
Page 88
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
SymptomConditionDiagnostic Item
Shock is too large for kick down.ON vehicle
ON vehicle
Strange noise in “R”,“N” or“ D” position.
OFF vehicle
With selector lever in P position, vehicle
does not enter parking condition or, with selector lever in another position, p arkin g condition is not cancelled.
Vehicle runs with transaxle in “ P” position.ON vehicle
Vehicle runs with transaxle in “N” position.ON vehicle
ON vehicle
OFF vehicle 4. Parking componentAT-225
Reference
page
1. Fluid level and stateAT-49
2. Actual engine torque signalAT-106
3. Turbine revolution sensorAT-98
4. ATF temperature sensorAT-88
5. TCM power input signalAT-188
6. Shift solenoid valve AAT-135
7. Shift solenoid valve BAT-140
8. Shift solenoid valve CAT-145
9. Shift solenoid valve DAT-155
10. Shift solenoid valve EAT-160
11. Pressure control solenoid valve AAT-130
12. Pressure control solenoid valve BAT-165
13. Pressure control solenoid valve CAT-174
14. TCMAT-66
15. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. Control valve assemblyAT-222
3. Torque convertorAT-232
4. Parking componentAT-225
5. Gear systemAT-232
1. PNP switchAT-83
2. Control cable adjustmentAT-221
3. Control valve assemblyAT-222
1. Fluid level and stateAT-49
2. PNP switchAT-83
3. Control cable and PNP switch adjustment
4. Line pressure testAT-49
1. Fluid level and stateAT-49
2. PNP switchAT-83
3. Control cable and PNP switch adjustment
4. Line pressure testAT-49
AT-221
219
AT-221
219
, AT-
, AT-
TCM Input/Output Signal Reference Value
TCM TERMINAL CONNECTOR LAYOUT
INFOID:0000000004278037
WCIA0537E
AT-66
Page 89
TROUBLE DIAGNOSIS
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
TCM INSPECTION TABLE
Data are reference value and are measured between each terminal and ground.
Terminal
Wire
color
ItemConditionData (Approx.)
When turning ignition switch ON.0 - 1.5V
A
B
1 Y/W A/T PV IGN relay
When turning ignition switch OFF.0V
3LCAN-H––
4PCAN-L––
14BGround– 0V
Lever switch: “ON” position0V
16OLever switch
Pressure control
21G/B
22L
23G
24BRPNP switch A
25G/R
26W/B
solenoid valve B
ground
Revolution sensor
power supply
Turbine revolution
sensor power supply
Shift solenoid
valve B
Shift solenoid
valve D
Lever switch: “OFF” positionBattery voltage
When engine is running with idle speed and setting selector lever to “P” position.
When turning ignition switch ON.Battery voltage
When turning ignition switch OFF.0V
When turning ignition switch ON.Battery voltage
When turning ignition switch OFF.0V
Selector lever: “P”, “R” and “L” position0V
Other than the aboveBattery voltage
When shift solenoid valve B operates.
(When driving in 1st or 5th gear.)
When shift solenoid valve B does not operate.0V
When shift solenoid valve D operates.
(When driving in 3rd, 4th or 5th gear.)
When shift solenoid valve D does not operate.0V
0V
Battery voltage
Battery voltage
AT
D
E
F
G
H
I
J
K
L
M
N
27Y/R
28W
Power supply
(Memory back-up)
Pressure control
solenoid valve C
ground
When turning ignition switch ON.Battery voltage
When turning ignition switch OFF.Battery voltage
When engine is running with idle speed and setting selector lever to “P” position.
0V
AT-67
O
P
Page 90
< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
Terminal
29B/WRevolution sensorWhen moving at 20 km/h (12 MPH) in 1st gear.119Hz
30R
31G/YPNP switch B
32P/B PNP switch C
33R/VPNP switch PN
34PPower supply
35L/Y
36W/L
37R/B
Wire
color
Turbine revolution
sensor
Pressure control
solenoid valve A
Pressure control
solenoid valve B
Shift solenoid
valve C
ItemConditionData (Approx.)
When moving at 20 km/h (12 MPH) in 1st gear.371Hz
Selector lever: “R”, “N”, “D” and “L” position0V
Other than the aboveBattery voltage
Selector lever: “D” and “L” position0V
Other than the aboveBattery voltage
Selector lever: “P” and “N” positionBattery voltage
Other than the above0V
When turning ignition switch ON.Battery voltage
When turning ignition switch OFF.0V
When engine is running with idle speed and setting selector lever to “P” position.
When engine is running with idle speed and setting selector lever to “P” position.
When shift solenoid valve C operates.
(When driving in 1st, 2nd, 3rd or reverse gear.)
When shift solenoid valve C does not operate.0V
300Hz
300Hz
Battery voltage
38Y/B
39Y/B
40L/G
41R/Y
42LG/B
Power supply
(A/T PV IGN relay)
Power supply
(A/T PV IGN relay)
Pressure control
solenoid valve A
ground
Fluid temperature
sensor
Fluid temperature
sensor ground
When turning ignition switch ON.Battery voltage
Measure 3 seconds after switching “OFF” the ignition switch.
When turning ignition switch ON.Battery voltage
Measure 3 seconds after switching “OFF” the ignition switch.
When engine is running with idle speed and setting selector lever to “P” position.
When ATF temperature 0°C (32°F)4.0V
When ATF temperature 20°C (68°F)3.0V
When ATF temperature 80°C (176°F)0.8V
When ATF temperature 100°C (212°F)0.5V
–0V
0V
0V
0V
AT-68
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< SERVICE INFORMATION >
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2009 Quest
TROUBLE DIAGNOSIS
Terminal
43V/WPNP switch PA
45O/B
46W/G
47BR/Y
48BGround–0V
Wire
color
Pressure control
solenoid valve C
Shift solenoid
valve A
Shift solenoid
valve E
ItemConditionData (Approx.)
Selector lever: “P”, “N” and “L” position0V
Other than the aboveBattery voltage
When engine is running with idle speed and setting selector lever to “P” position.
When shift solenoid valve A operates.
(When driving in 1st gear.)
When shift solenoid valve A does not operate.0V
When shift solenoid valve E operates.
(When driving in reverse gear.)
When shift solenoid valve E does not operate.0V
300Hz
Battery voltage
Battery voltage
CONSULT-III Function (TRANSMISSION)INFOID:0000000004278038
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
A/T diagnostic modeDescription
Supports inspections and adjustments. Commands are transmitted to the TCM for setting the status
DATA MONITORDisplays TCM input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TESTOperation of electrical loads can be checked by sending drive signal to them.
FUNCTION TESTConducted by CONSULT -III instead of a technician to determine whether each system is "OK" or "NG".
ECU PART NUMBERTCM part number c an be read.
suitable for required operation, input/output signals are received from the TCM and received data is
displayed.
A
B
AT
D
E
F
G
H
I
J
WORK SUPPORT MODE
Work i tem
Work item ConditionUsage
INITIALIZATIONUnder the following conditions.
• Ignition switch “ON”.
• Selector lever “P” or “N” position.
• Engine not running.
• Vehicle speed is 0 km/h (0 MPH).
• Ignition voltage is more than 10.5V.
• Malfunction was not detect ed .
Use to initialize TCM in a case of replacing transaxle or TCM. Refer to AT-7, "Precaution for A/T
Assembly or TCM Replacement".
SELF-DIAG RESULT MODE
After performing “SELF-DIAGNOSTIC place check marks for results on the “Diagnostic Worksheet”, AT-41,
"How To Perform Trouble Diagnosis for Quick and Accurate Repair". Reference pages are provide following
the items.
Display item list
K
L
M
N
O
P
AT-69
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TROUBLE DIAGNOSIS
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2009 Quest
< SERVICE INFORMATION >
X: Applicable —: Not applicable
TCM self-diagnosisOBD-II (DTC)
CONSULT -III or
*4
MIL indicator
lamp
GINE” with
GST
U1000
P0711
P0731
P0732
P0733
P0734
P0735
P0762
Items (CONSULT -III
screen terms)
CAN COMM CIRCUIT
VEH SPD SE/CIRMTR
Malfunction is detected when...
• When TCM is not transmitting or receiving CAN communication signal for 2 seconds or more.
• ECM detects a malfunction in vehicle spee d sensor sig nal,
after that TCM inputs the result by CAN communication.
O/D OFF in-
dicator
lamp
X
*3
“TRANSMIS-
SION” with
CONSULT-III
U1000
XP0500P0500
TCM PROCESSOR • TCM processor is malfunctioning.—P0613—
PNP SW/CIRC• PNP switch signals input with impossible patternXP0705 P0705
• Normal voltage is not applied to ATF temperature sensor
ATF TEMP SEN/
CIRC
due to open, short, and so on.
• During running, the ATF temperature sensor signal voltage
XP0710P0710
is excessively high or low.
FLUID TEMP SEN• ATF temperature signal does not change.—P0711
• Signal from turbine revolution sensor does not input due to
TURBINE SENSOR
open, short, and so on.
XP0717P0717
• Unexpected signal input during running.
VHCL SPEED SENA/T
ENG SPD INP PERFOR
A/T 1ST GR FNCTN
A/T 2ND GR
FNCTN
A/T 3RD GR
FNCTN
A/T 4TH GR
FNCTN
A/T 5TH GR
FNCTN
A/T TCC S/V
FNCTN
PC SOL A(L/
PRESS)
SHIFT SOL AXP0750P0750
SHIFT SOL BXP0755P0755
• Signal from revolution sensor does not input due to open,
short, and so on.
XP0722P0722
• Unexpected signal input during running.
• Malfunction is detected in engine speed signal, actual engine torque signal or torque reduction signal that is output
XP0726P0726
from ECM through CAN communication.
• A/T cannot be shifted to the 1st gear position even if electrical circuit is good.
• A/T cannot be shifted to the 2nd gear position even if electrical circuit is good.
• A/T cannot be shifted to the 3rd gear position even if electrical circuit is good.
• A/T cannot be shifted to the 4th gear position even if electrical circuit is good.
• A/T cannot be shifted to the 5th gear position even if electrical circuit is good.
XP0731
XP0732
X P0733
XP0734
XP0735
• A/T cannot perform lock-up even if electrical ci rcuit is good.XP0744 P0744*2
• Normal voltage is not applied to solenoid due to open,
XP0745P0745
short, and so on.
• TCM detects as irregular by comparing target value with
monitor value.
SHIFT SOL CXP0760P0760
SFT SOL C STUCK
ON
SHIFT SOL D
SHIFT SOL EXP0770P0770
PC SOL B(SFT/
PRS)
• Condition of shift solenoid valve C is different from monitor
value, and relation between gear position and actual gear
ratio is irregular.
• Normal voltage is not applied to solenoid due to open,
short, and so on.
• TCM detects as irregular by comparing target value with
monitor value.
XP0762
XP0765P0765
XP0775P0775
*1
, “EN-
*4
*2
*2
*2
*2
*2
*2
*2
AT-70
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< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
TCM self-diagnosisOBD-II (DTC)
Items (CONSULT -III
screen terms)
• No rotation change occurs between input (turbine revolu-
tion sensor) and output (revolution sen sor) and shifting
SHIFT
PC SOL
C(TCC&SFT)
PC SOL C STC ON
GEAR LEVER
SWITCH
TCM POWER INPT
SIG
ELEC TH CONTROL
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.
*1: Refer to AT-38, "Malfunction Indicator Lamp (MIL)".
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
*3: Indicate it when performing TCM SELF-DIAGNOSTI C PROCEDURE (NO TOOLS). Refer to AT-74, "Diagnosis Procedure"
*4: If DTC U1000 is displayed with other DTCs, first perform the trou ble diagnosis for DTC U1000. Refer to AT-77
time is long.
• Shifting ends immediately.
• Condition in malfunction engine revs up usually shifting.
• Normal voltage is not applied to solenoid due to open,
short, and so on.
• TCM detects as irregular by comparing target value with
monitor value.
• Condition of pressure control solenoid valve C is different
from monitor value, and relation between gear position and
actual gear ratio or lock-up status is irregular.
• Lever switch signal is incorrectly input due to open, short,
and so on.
• Voltage supplied to TCM is too low.—P0882P0882
• The electric throttle control system for ECM is in a malfunc-
tion, after that TCM inputs the result by CAN commnication.
• No NG item has been detected.—XX
Malfunction is detected when...
O/D OFF in-
dicator
lamp
XP0780
XP0795P0795
XP0797
—P0825—
XP1726P1726
*3
“TRANSMIS-
SION” with
CONSULT-III
MIL indicator
lamp
CONSULT-III or
.
*1
, “EN-
GINE” with
GST
*2
P0780
*2
P0797
.
DATA MONITOR MODE
NOTICE:
1.The CONSULT-III electrically displays shift timing and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timing and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2.Shift schedule (which implies gear position) displayed on CONSULT-III and that indicated in Service Manual may differ slightly. This occurs because of the following reasons:
-Actual shift schedule has more or less tolerance or allowance,
-Shift schedule indicated in Service Manual refers to the point where shifts start, and
-Gear position displayed on CONSULT-III indicates the point where shifts are completed.
3.Display of solenoid valves on CONSULT-III changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
Display item list
NOTE:
When malfunction is detected, CONSULT-III performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
A
B
AT
D
E
F
G
H
I
J
K
L
M
N
O
P
AT-71
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TROUBLE DIAGNOSIS
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2009 Quest
< SERVICE INFORMATION >
X: Standard —: Not applicable
Monitor item selection
Monitored item (Unit)
VHCL/S SE-A/T (km/h)XXXVehicle speed recognized by the TCM.
VHCL/S SE-MTR* (km/h)X—X
FLUID TEMP SE* (V)X—X
FLUID TEMP* (°C)——X
COOLAN TEMP* (°C)——X
BATTERY VOLT* (V)X—X
ENGINE SPEED* (rpm)XXX
TURBINE REV* (rpm)X—X
OUTPUT REV* (rpm)——X
PNP SW A* (ON/OFF)X—X
PNP SW B* (ON/OFF)X—X
PNP SW C* (ON/OFF)X—X
PNP SW PA* (ON/ OF F)X—X
PNP SW PN (ON/OFF)X—X
MANU MODE SW* (ON/OFF)X—X
NON M-MODE SW* (ON/OFF)X—X
UP SW* (ON/OFF)X—X
DOWN SW* (ON/OFF)X—X
RANGE SLCT SW (ON/OFF)X—XThis means lever switch.
BRAKE SW* (ON/OFF)X—X
CLSO THL POS (ON/OFF)X—X
ASCD SIGNAL (ON/OFF)X—X
ASCD OD OFF (ON/OFF)X —X
ABS SIGNAL (ON/OFF)X—X
TCS SIGNAL (ON/OFF)X—X
TCS GEAR HOLD (ON/OFF)X—X
TCS SFT CNG (ON/OFF)——X
LOCK-UP* (ON/OFF)——X
SLCT LVR POSI*——X
MANU GR POSI——XAlways displays “##”.
GEAR*——X
ECU INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION FROM
MENU
Remarks
Displays status of engine coolant temperature.
Signal input with CAN communication
line.
Signal input with CAN communication
line.
Turbine revolution computed from signal
of turbine revolution sensor is displayed.
Output revolution computed from signal
of revolution sensor is displayed.
Not mounted but displayed.
This means stop lamp switch signal via
CAN communication line.
Signal input with CAN communication
line.
Requests TCM for shift schedule
change.
Always “ON” during lock-up, regardless
of types.
Displays “##” when TCM can not judge
selector lever position.
Indicates current gear position.
When setting in P or N position, indicate
by shift solenoid valves.
When setting in R position, displays “1”.
Displays “##” when TCM can not judge
gear position.
AT-72
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< SERVICE INFORMATION >
Revision: October 2008
2009 Quest
TROUBLE DIAGNOSIS
Monitor item selection
Monitored item (Unit)
NEXT GR POSI——X
REDCT DEM SIG (ON/OFF)——X
TC SLIP RATIO——X
SLIP REV (rpm)——X
ACCELE ANGLE* (%)XXX
PC SOL A OUT* (A)——X
PC SOL A MON* (A)—XX
PC SOL B OUT* (A)——X
PC SOL B MON* (A)—X X
PC SOL C OUT* (A)——X
PC SOL C MON* (A)—XX
SFT SOL A OUT* (ON/OFF)——X
SFT SOL B OUT* (ON/OFF)——X
SFT SOL C OUT* (ON/OFF)——X
SFT SOL D OUT* (ON/OFF)——X
SFT SOL E OUT* (ON/OFF)——X
SFT SOL A MON* (ON/OFF)—XX
SFT SOL B MON* (ON/OFF)—XX
SFT SOL C MON* (ON/OFF)—XX
SFT SOL D MON* (ON/OFF)—XX
SFT SOL E MON* (ON/OFF)—XX
G-RATE (G)——X
F-SAFE MODE (OK/1 to 10)—XX
VDC SIGNAL (ON/OFF)X—X
SHIFT SCHDULE——X
Voltage (V)——X
ECU INPUT
SIGNALS
MAIN SIG-
NALS
SELEC-
TION FROM
MENU
Remarks
Displays “##” when TCM can not judge
gear position.
Displays status of engine t orque reduction demand signal.
Difference between engine speed and
torque converter input shaft speed.
Degree of opening for accelerator recognized by the TCM.
For fail-safe operation, the spec ific value
used for control is displayed.
Numbers indicate types of fail-safe
modes. Refer to AT-39, "Fail-Safe"
Signal input with CAN communication
line.
The details for data of shift schedule are
as follow:
NOR: Normal mode
UP1: Upslope 1 mode
UP2: Upslope 2 mode (steeper then
“UP1”)
DOWN: Downslope mode
HOT1: Hot 1 mode
HOT2: Hot 2 mode (higher temperature
than “HOT1”)
Displays the value measured by the voltage probe.
*: Also, the items appear on CONSULT-III screen in freeze frame data mode of self-diagnostic results only if DTC is detected. For details,
refer to "SELF-DIAG RESULT MODE".
ECU INPUT
SIGNALS
MAIN SIG-
NALS
ACTIVE TEST MODE
Test item
Test itemConditionDescription
SHIFT SOLENOID A
SHIFT SOLENOID B
SHIFT SOLENOID C
SHIFT SOLENOID D
SHIFT SOLENOID E
PRESSURE CONTROL SOL A
PRESSURE CONTROL SOL B
PRESSURE CONTROL SOL C
*: Except when P0711, P0731, P0732, P0733, P0734, P0735, P0744, P0762, P0780 or P0797 is detected.
NOTE:
Approximately 10 seconds after the operation is begun, “TEST IS STOPPED” will be displayed.
Under the following conditions.
• Ignition switch “ON”
• Selector lever “P” or “N” position
• Engine not running
• Vehicle speed is 0 km/h (0 MPH).
• Ignition voltage is more than 10.5V.
• Malfunction was not detected.*
SELEC-
TION FROM
MENU
The value measured by the pulse probe
is displayed.
Each shift solenoid operate ON/OFF by receiving the
drive signal.
Each pressure control solenoid is activated by receiving the drive signal.
Refer to EC-123, "Generic Scan Tool (GST) Function".
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-65, "Malfunction Indicator Lamp (MIL)".
TCM SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-III)
Refer to AT-69, "CONSULT-III Function (TRANSMISSION)".
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
As a method for locating the suspect system, when the self-diagnostics start signal is input, the memory for
the malfunction location is output and the O/D OFF indicator lamp flashes to display the corresponding DTC.
Diagnostic procedure
1.CHECK O/D OFF INDICATOR LAMP
1.Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.
2.Turn ignition switch “ON” and “OFF” at least twice, then leave it in the “OFF” position.
3.Wait 10 seconds.
4.Turn ignition switch “ON”. (Do not start engine.)
Does O/D OFF indicator lamp come on for about 2 seconds?
AT-74
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TROUBLE DIAGNOSIS
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
YES>> GO TO 2.
NO>> GO TO AT-193, "O/D OFF Indicator Lamp Does Not Come On"
2.JUDGEMENT PROCEDURE
.
A
NOTE:
After turning ignition switch “ON” (at step 6), perform within 2 seconds (while O/D OFF indicator lamp come
on.).
1.Turn ignition switch “OFF”.
2.Push shift lock release button.
3.Move selector lever from “P” to “D” position.
4.Release accelerator pedal. (Set the closed throttle position signal “ON”.)
5.Depress brake pedal. (Stop lamp switch signal “ON”.)
6.Turn ignition switch “ON”.
7.Move the selector lever to the “N” position and release brake pedal. (Stop lamp switch signal “OFF”.)
8.Move the selector lever to “D” position and depress brake pedal. (Stop lamp switch signal “ON”.)
9.Release brake pedal. (Stop lamp switch signal “OFF”.)
10. Depress accelerator pedal fully and release it.
>> GO TO 3.
3.CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp.
Refer to "Judgement self-diagnosis code".
If the system does not go into self-diagnostics, refer to AT-209, "TCM Self-Diagnosis Does Not Activate"
>> DIAGNOSIS END
Judgement self-diagnosis code
When a malfunction is detected, the malfunction route is indicated by longer illumination of the indicator lamp.
.
B
AT
D
E
F
G
H
I
K
M
N
O
P
J
L
ERASE SELF-DIAGNOSIS
SCIA2758E
AT-75
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TROUBLE DIAGNOSIS
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2009 Quest
< SERVICE INFORMATION >
• In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned ON and OFF.
• However, this information is erased by turning ignition switch “OFF” after executing self-diagnostics or by
erasing the memory using the CONSULT-III.
AT-76
Page 99
DTC U1000 CAN COMMUNICATION LINE
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
DTC U1000 CAN COMMUNICATION LINE
DescriptionINFOID:0000000004278040
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000004278041
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “CAN COMM CIRCUIT” with CONSULT-III or U1000 without CONSULT-III is
detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000004278042
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000004278043
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
A
B
AT
D
E
F
G
H
WITH CONSULT-III
1.Turn ignition switch “ON”. (Do not start engine.)
2.Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3.Start engine.
4.Drive vehicle and maintain the following condition for at least 6 seconds.
SLCT LVR POSI: “D” position
5.If DTC is detected, go to AT-79, "Diagnosis Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-III”.
I
J
K
L
M
N
O
P
AT-77
Page 100
DTC U1000 CAN COMMUNICATION LINE
Revision: October 2008
2009 Quest
< SERVICE INFORMATION >
Wiring Diagram - AT - CAN
INFOID:0000000004278044
TCM Input/Output Signal Reference Values. Refer to AT-66, "TCM Input/Output Signal Reference Value".
BCWA0604E
AT-78
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